HOUSTON--(BUSINESS WIRE)--The Texas Institute for Genomic Medicine (TIGM) announced today that the second installation of its OmniBank II library of knockout mouse embryonic stem cell clones has been completed by Lexicon Genetics Incorporated (Nasdaq:LEXG). The second installation contains more than 100,000 clones, bringing the total number of clones to more than 200,000 contained in TIGM’s OmniBank II library.